Lehninger Principles of Biochemistry 8th
Edition – Complete Test Bank (Chapters
1–28)
COMPLETE TEST BANK LEHNINGER
PRINCIPLES OF BIOCHEMISTRY 8TH EDITION
BY DAVID L. NELSON & MICHAEL M. COX
CHAPTERS 1-28 2026 COMPLETE 200+
QUESTION BANK
INSTRUCTIONS: Select the BEST answer for each
question. Each question includes
the correct answer and a detailed rationale for study
purposes.
1
,CHAPTER 1: THE FOUNDATIONS OF
BIOCHEMISTRY (Questions 1-25)
Q1. The four most abundant elements in living
organisms are:
A) Carbon, hydrogen, nitrogen, and oxygen
B) Carbon, hydrogen, phosphorus, and sulfur
C) Carbon, nitrogen, oxygen, and sulfur
D) Hydrogen, nitrogen, oxygen, and phosphorus
Answer: A
Explanation: Carbon, hydrogen, nitrogen, and
oxygen together account for over 99% of the atoms
in living cells. Phosphorus and sulfur are essential
but present in smaller quantities .
2
,Q2. Which of the following is NOT a distinguishing
feature of living organisms?
A) High degree of chemical complexity and
organization
B) Ability to extract, transform, and utilize energy
from the environment
C) Self-replication and self-assembly
D) A crystalline structure that remains unchanged
over time
Answer: D
Explanation: Living organisms are characterized by
high complexity, energy utilization, self-replication,
and evolution over time. A crystalline structure that
remains unchanged is not a feature of living systems
.
Q3. In a bacterial cell, the DNA is located in the:
A) Cell envelope
3
, B) Cell membrane
C) Nucleoid
D) Ribosomes
E) Nucleus
Answer: C
Explanation: Prokaryotic cells lack a membrane-
bound nucleus. Their DNA is concentrated in a
region called the nucleoid .
Q4. A major change occurring in the evolution of
eukaryotes from prokaryotes was the development
of:
A) Photosynthetic capability
B) Plasma membranes
C) The nucleus
D) Cell walls
4
Edition – Complete Test Bank (Chapters
1–28)
COMPLETE TEST BANK LEHNINGER
PRINCIPLES OF BIOCHEMISTRY 8TH EDITION
BY DAVID L. NELSON & MICHAEL M. COX
CHAPTERS 1-28 2026 COMPLETE 200+
QUESTION BANK
INSTRUCTIONS: Select the BEST answer for each
question. Each question includes
the correct answer and a detailed rationale for study
purposes.
1
,CHAPTER 1: THE FOUNDATIONS OF
BIOCHEMISTRY (Questions 1-25)
Q1. The four most abundant elements in living
organisms are:
A) Carbon, hydrogen, nitrogen, and oxygen
B) Carbon, hydrogen, phosphorus, and sulfur
C) Carbon, nitrogen, oxygen, and sulfur
D) Hydrogen, nitrogen, oxygen, and phosphorus
Answer: A
Explanation: Carbon, hydrogen, nitrogen, and
oxygen together account for over 99% of the atoms
in living cells. Phosphorus and sulfur are essential
but present in smaller quantities .
2
,Q2. Which of the following is NOT a distinguishing
feature of living organisms?
A) High degree of chemical complexity and
organization
B) Ability to extract, transform, and utilize energy
from the environment
C) Self-replication and self-assembly
D) A crystalline structure that remains unchanged
over time
Answer: D
Explanation: Living organisms are characterized by
high complexity, energy utilization, self-replication,
and evolution over time. A crystalline structure that
remains unchanged is not a feature of living systems
.
Q3. In a bacterial cell, the DNA is located in the:
A) Cell envelope
3
, B) Cell membrane
C) Nucleoid
D) Ribosomes
E) Nucleus
Answer: C
Explanation: Prokaryotic cells lack a membrane-
bound nucleus. Their DNA is concentrated in a
region called the nucleoid .
Q4. A major change occurring in the evolution of
eukaryotes from prokaryotes was the development
of:
A) Photosynthetic capability
B) Plasma membranes
C) The nucleus
D) Cell walls
4
